/*************************************************************************
	> File Name: 002.利用减法判断a和b是否相等.c
	> Author: Maureen 
	> Mail: Maureen@qq.com 
	> Created Time: 五  8/20 22:55:20 2021
 ************************************************************************/

#include <stdio.h>

int main() {
    int a, b;
    scanf("%d%d", &a, &b);
    if (a - b) {
        printf("not equal!\n");
    } else {
        printf("equal!\n");
    }

    return 0;
}
